gubelmann



Jan. 7, 1930. w. s. GUBELMANN 1,742,532

BEPEA'TING MECHANISM FOR CALCULATING AND LIKE MACHINES Original FiledJan. 10, 1900' 7.Sheets-Sheet 1 Jim% INVENTOR.

Jan. 7, 1930. w. s. GUBELMANN REPEATING MECHANISM FOR CALCULATING ANDLIKE MACHINES Original Filed Jan. 10, 1900 7 Sheets-Sheet Jan, 7, 1930.w. s. GUBELMANN REPEATING MECHANISM FOR CALCULATING AND LIKE MACHINESOriginal Filed Jan. 10, 1900 '7 Sheets-Sheet 3 mam A? @MM INVENTOR.

. 1930- w. s. GUBELMANN 1,742,532

REPEATING MECHANISM FOR CALCULATING AND LIKE MACHINES Original Fild Jan.10, 1900 v Sheets-Sheet 4 MW yaw/M INVENTOR.

Jan. 7, 1930.

w. s. GUBELMANN Original Filed Jan. 10, 1900 7 Sheets-Sheet 5 luvnfronjJan. 7, I930. w. s. GUBELMANN 1,742,532

I REFEATING MECHANISM FOR CALCULATING AND LIKE MACHINES Original FiledJan. 10, 1900 I 7 Sheets-Sheet 6 N N I 2 Maw W luvem'oa.

Jan. 7, 1930. w. s. GUBELMANN REPEATING IQIECHANISM FOR CALCULATING ANDLIKE MACHINES 7 Sheets-Sheet 7 Original Filed Jan. 10

INVENTOR.

Patented Jan. 7, 1930 UNITED S1ATES PATENT OFFICE,

WILLIAM S. G'UBELMANN, OF BUFFALQ, NEW YORK REPEATING MECHANISM FORCALCULATING AND LIKE MACHINES Original application filed January 10,1900, Serial No. 1,004. Divided and this application filed August 10,1918. Serial No. 249,303.

This application relates particularly to repeating mechanism forcalculating and like machines, and is a division of my pendingapplication Serial No. 1,004, filed January '5 10,1900, and eventuatingin Patent No.

1,429,201, granted September 12, 1922.

One of the objects of the invention is to ,=provide improved means foradding the same amount on a set of accumulators at each of a pluralityof operations of the machine and with a single setting of the keys.

Another object is to provide means for adding the same amounts on aplurality of independent sets of accumulators ateach of a plurality ofoperations of the machine and with a single setting of the amounts bythe controlling keys.

Another object is to provide means for causing printing mechanism toprint the same, item or items at each of a plurality of .operationsofthe machine and with a single iettin'g of the item or items by thecontrolling inother object is to provide means for adding the sameamount on one set'.of:accumi1- lators at each of a plurality ofoperations of the machine while adding different amounts on another setof accumulators at .each of said operations of said machine.

w Another object is to provde key mechanism for controlling all of the.above results.

Another object, is to combine the repeat I key with total takingmechanism in such manner that'the operation of the repeat key willautomatically renderthe total taking mechanism incap'ableof releasingthenumber keys from theirdetainingmechanism.

Other objects will be. pointed out in th following description andclaims. M

I have shown a machine embodying re.

peating' mechanism and non-.pr1nt1ng-mecha- .nism, and the combinationsof these two mechanisms'have been claimed herein, as they are useful inmultiplying. v In the accompanying drawings consisting offseven sheets:

.Fig. 1 is a fragmentary top plaii view of my improved adding andrecordingfmachine.

Fig. 2 is a vertical longitudinalsection of i the same; takensubstantially in, line 2- 2,

Figure 1, and showing the adding and recording mechanism of one columnor set of keys in the normal or inoperative position. Fig. 3 is afragmentary perspective view of the units gear segment and controllingarm 5 of the main adding mechanism.

, Fig. 4 is a perspective View of one of the registering keys.

Fig. 5 is a fragmentary perspectiveview showing the key lever, the maingear segc0 ment, the controlling arm and the printing 1sgegment of oneof the higher columns of numers.

Fig. 6 is a fragmentary longitudinal sectional elevation takensubstantially in line 0-6, Figure 1, and showing the auxiliary addingand printing mechanism.

Fig. 7 is a fragmentary longitudinal sectional elevation takensubstantially in line 7-7, Figure 1, and showing the mechanism wherebywords are printed.

Fig. 8 is a longitudinal sectional-elevation, taken substantially inline 8--8, Figure 1, and showing particularl the "mechanismwherebydifferent parts 0 the machine may Z5 be thrown into and out ofgear.

Fig. 9 is a vertical section taken substam tially in line 9 -9, Figure2.

Fig. 10 is a vertical transverse section taken in line 10-10, Figure 2.

' Fig. 11 is a fragmentary transverse sectional elevation taken in line1l-11, Figure 2, and showing the mechanism for holding the keys in theirdepressed position and for releasing the same. Fig. 12 is a fragemntaryperspective view of the key holding and releasing mechanism. Fig.1? is afragmentary transverse sectional elevation, taken inline 13-13, Figure2. J 9o Fig. 14 is a similar view showing one of the keys locked in adepressed position.

Fig.15 is a fragmentary vertical section in line 15-15, Figure 11. Figs.16, 17 and 18 are views of details. 9.5

Like letters of reference referto like parts in the several figures. aGeneral construction 1 represents themainv frame of the machine 1 whichmay be of any suitable construction so as to support the working partsof the machine.

2, Figure 2, represents a number of main dials which register the totalof the numbers which are added together. These dials consist preferablyof cup-shaped wheels which are numbered on their periphery and aremounted in their proper order on a transverse dial shaft 3, which isjournaled in bearings on the main frame, the dials being so arrangedthat the dial representing the lowest number is arranged on the righthand end of the series and the dials representing the successivelyhigher numbers being arranged successively in their order toward theleft from the dial representing the lowest number. The lowest orrighthand dial is pref erably divided on its periphery into eighths 0 soas to indicate fractions of a cent in eighths,

more than tens of millions.

andthe remaining dials are graduated on their periphery according to thedecimal system into tenths.

fractions of a cent to tens of millions, but if desired, additionaldials may be added to the right and to the left of the series, if it isdesired to register smaller divisions of a cent or Each of the main'total dials 2 is provided on its left hand side with a gear pinion 4,which is rigidly connected therewith, as shown in Figures 2 and 6. Thepinion .of the fraction wheel has eight teeth while the pinions of theremaining dials are each provided with ten teeth.

5 represents the main registering gear segments, one of which isprovided for each of the dials 2 and is adapted to engage with thepinion thereof, for operating the respective dial. Each of these gearsegments is arranged in rear of itscompanion gear pinion and is providedat its lower end with a rearwardly projecting arm 6 which is pivotedloosely on a transverse supporting rod 7. This rod is mounted with itsends on the upper ends of two rock arms 8 which turn loosely with theirlower ends on' a transverse rock-shaft 9. The rock-arms 8 are connectedby a transverse bar 10 which compels the two arms tomove'back and forthtogether. In the normal position of the gear segments when the machineis at rest these segments are retracted rearwardly out of engagementwith the dial pinions of the dials and the segments-are elevated sothattheir lowermost teeth are opposite the spaces between the ad- Asshown in the drawings ten total dials are shown and extend fromtransverse stationary bar 12 in the rear part of the machine. The gearsegments are moved forwardly so that their teeth engage with the dialpinions 4 by means of a shifting rock-arm 13, which is preferablysecured to the right hand rock-arm 8 and projects rearwardly. Uponraising the shifting rockarm 13, the rock-arms 8 are swung forwardly andthe gear segments 5 are engaged with the dial pinions, while uponswinging the shifting rock-arm downwardly, the rock-arms 8 are swungrearwardly and the gear segments are disengaged from the dial pinions.

14 represents a cam whereby the gear segments are engaged with the dialpinions. This cam is mounted on the upper portion of a verticallyswinging rocking frame 15 which is arranged on the right-hand side ofthe machine. This cam is provided at its front end with an incline orcam face 16 and at its rear end with a concentric face 17. When the camis in its rearmost or retracted position, its incline stands in rear ofa roller or projection 18 on the rear end of the shifting arm 18, asshown in Figures 2, 6 and 9. Upon swinging the rocking frame 15 so thatthe cam 14 moves forwardly, the incline of the latter engages underneaththe roller 18 and raisesthe arm 13, thereby moving the arms 8 forwardly.The throw of the incline 16 is just sufficient to engage theteeth of thegear segments with the dial pinions. When the roller 18 has been raisedto the top of the incline, the concentric portion of the cam engageswith the roller during the continued forward movement of the cam and thelatter does not shift the gear segments any further forward.

When the rear end of the concentric face 17 of the cam passes forwardlyfrom underneath the roller 18, the constant pull of the springs 11causes the rock-arm 13 to be depressed and the rock-arms 8 to be movedrearwardly, thereby disengaging the gear. segments from the dialpinions. Upon now moving the cam 14 backwardly together with the rockingframe 15, this cam does not affect the arm 13 and the parts connectedtherewith but is affected by said arm at the last portion of thebackward movement of the cam, at which time the back or lower side ofincline 16 engages with the roller 18 which lifts said incline and atthe end of the backward movement of the cam, the latter clears saidroller and drops behind the same, as shown in-Figure 2, preparatory toagain raising the roller 18 and connecting parts during the next forwardmovement of the cam 14.

For the purpose of permitting the front end of the cam to rise so as toclear the roller 18, this cam is pivoted at its rear end to the rearportion of the rocking frame 15. The upward and downward movement of thefront end of the cam is limited by means of a lug 19 proj ectlng fromthe side of the cam and engaging with a slot in the adjacent part of therocking frame 15, as shown in Figure 9. The rockingframe -is securedwithrits lower portlon to a transverse rock-shaft 2O journaled in themain frame and provided outside of the frame with a hand crank 21, asshown in'Figure 9, whereby this shaft is rocked and the parts connectedtherewith are operated.

ends with the transverse rod 7 by lifting plates 23. '24 represents twoshifting arms which are mounted loosely at their rear ends on therock-shaft 20and which support at their other ends a transverse bar .25which transverse bar is connected "at its ends by two links 26, with thelifting plates 23, whereby I ments and the other parts connectedtherewith resting on said bar. Upon depressing V the transverse bar 25,the lifting bar 22 is moved downwardly andthe gear segments restingthereon are permitted to move down: wardly with the bar until thesegments are arrested.

Each of held in contact with the lifting bar 22 by a spring 27'whichconnects the arm of the segment with the transverse bar 25. If thedown-- ward movement .ofthe geai'fsegment is ar-" rested while theshifting arms 24 continue to move downwardly, the lifting bar 22is movedaway from the underside of the arm of the gear segment and the spring 27is strained.

The transverse bar 25 is arranged at one end in a segmental notch 28formed'in the front part of the rocking frame 15, shown in Figures 2, 6and 9 and its opposite end' isarrangedin a similar segmental notch 28,

' formed in a rocking frame 29 which is se-- cured to the operatingshaft 20 on the'lefthand side of the machine. The rocking frames 15 and29 together with the operating shaft 20 constitute the main or universaloperating frame of the machine; I 0

When the, machine is at rest, as shown m Figure 2, the transverse bar 25engages with the front side of the notches 28 in the rock{ .ing frames15and 29. Upon turning. the,

' ment independent of the transverse bar 25.

The latter remains at rest until the inclinedfrontend 16 of the cam-14has raised the arm 13 and moved-the gear segments into engagement with-the dial pinions, during which movement the rocking frames move idlythe extent of their notches 28, along the ends of the bar 25 withoutdisturbing the latter. After the gear segments have been upon raisingthe shifting arms 24, the lifting bar 22 is causedto raise the gearseg'- PlIllOIlS.

the gear segments is yieldingly Upon now turningtherock-shaft 20 baclr-1 engaged with the dial pinions, the continued forward movement of therocking frames causes the rear ends of'their notches 28 to engage withthe bar25 and depress the same,

thereby causing the lifting bar 22 to be moved downwardly and strain thesprings 27. This causes all of the gear segments which are free,

to be moved downwardly and to-continue turned depends upon the positionin which their downward movement until they are arrested. During thedownward movement of the downward movement of its operating seg-' mentis arrested; After the segments have been arrested in their downwardmovement, they remain in this position while the rocking frames completetheir forward movement. At the end of the forward movement of therocking frames, the roller '18 of the rock arm 13 drops off from therear end ofothe concentric part of the cam 14:, thereby allowing thesprings 11 to pull the gear segments rearwardlyout ofengagement. fromthe dial wardly by means of the handle 21, the rocking frames are movedbackwa'rdly, until the front endsof the notches engage'with .bar 25.

lVhen the latter is so engaged it is moved" backwardly' with therocking-frames to the end of their rearward movement which causes thetransverse bar 25 to lift the lifting bar 22 and the gear. segmentswhich have been depressed into their highest or normal position. Duringthis upward movement of the depressed gear segments they are out ofengagement with the dial pinions, so that the dials are not turnedbackwardly with the segments, but remain in their shifted position, 30represents a number of. elbowshaped controlling arms, which form part ofthe devices whereby the downward movement of the registeringgearsegments is controlled. One of these arms is arranged alongthe.left-hand side of each gear segment and consistsof an upright frontpart and a horifrom the lower end of the upright part, thereby leaving aclear space in rear of the upright part of the controlling lever asrepresented in Figures 1, 2, 3, 5- and 6, The rear end of the lower partof each controlling arm is mounted loosely on a transverse support ingbar 31, while the'upper end of'its front or upright part islooselyconnected with the upper portion of its companion gear segvzontal lowerpart which extends rearwardly ment. This loose connection permits thecontrolling arm and the gear segment to swing freely-about theirindividual axes, which are arranged parallel but out of line, and alsopermits the gear segment tomove forward and backward into and out ofengagement 1 with its companion dial pinion. In the uppermost positionof the controlling arms the same bear with their upper ends against a"transverse stop bar 32, as shown 1n Figure 2, which limits the upwardmovement of these arms. Each controlling arm is provided on the rearpart of its upper end with a locking lug 33, and on the front part ofits upper end with a stop lug 34, both of which lugs project toward theleft and are preferably stampedout in one piece with the controllingarm.

The operation of the registering devices is controlled by a number ofelbow-shaped key levers which are arranged side by side and pivoted to atransverse supporting rod 35. Each key lever is provided with a loweractuating arm 36, which projects forwardly, and an upper stop arm 37which projects upwardly along the left hand side of one of thecontrolling arms and gear segments, as represented in Figures 2 and 5.-Eachof "these key levers is provided on the rear" side is moved forwardinto engagement with the adjacent dial pinion, and the rocking framesare turned forwardly for depressing the gear segment, the spring 27 ofthis segment will be strained without, however, shifting the segment. Atthe end of this forward movement of the rocking segments, the roller 18i of the rock arm 13 drops off from the rear end of the cam 14, the gearsegment is moved rearwardly out of engagement from the dial pinion andthen the rocking frames move backwardly without having shifted the dial.

The upper arm of each key lever is provided on its front side with avertical series of differential stop shoulders 39, which are arrangedstep fashion and extend from the upper endof this arm downwardly andforwardly thereon, or in other words the stop shoulders 39 are arrangedradially out of .linewith one another and different distances from thepivot of the key lever. These stop shoulders of the key lever areadapted to be moved forwardly into the path of the stop lug 34 on thecontrolling arm. The stop shoulders are arranged different distancesfrom the stop lug 34 of the controlling arm, so that by moving differentstopshoulders of the key lever into the path of the stop lug of thecontroller arm, the latter and the gear segment connected therewith maybe der of the key lever is most remote from the stop lug of thecontrolling arm andtherefore requires the greatest forward movement ofthe key lever, in order to bring this stop shoulder into the path ofthis stop lug.

The stop shoulders of the key lever are so arranged that the distancefrom the stop shoulders to the path of the stop lug gradually grows lessfrom the uppermost stop shoulder to the lowermost stop shoulder. Therelative position of the different stop shoul ders of the key lever issuch that when its locking shoulder 38 remains in engagement with thelocking lug 33 and the gear segment is simply moved into and out ofengagement with its dial pinion,,the latter remains at zero, if the samehas not been previously moved. But when the key lever has been movedforwardly, so as to disengage its locking shoulder from the locking lugand moves one of its stop shoulders into the path of the stop lug of thecontrolling arm,the latter arm. and gear segment connected therewithwill be moved downwardly upon moving the rocking frames forwardly,until. the stop lug of the controlling arm strikes the respective stopshoulder of the key lever which stands in its I path, whereby the gearsegment while turning in engagement with the adjacent dial. gear pinionturns the same forward. a By turning the key lever forward more or lessand'moving one or the other of its stop shoulders into the path of thestop lug 34 of the controlling arm, the distance which this arm descendscan be varied, thereby varying the number of spaces which its gearsegment turns the adjacent dial.

Main number key mechanism 40 represents the main keys whereby the keylevers of the main registering and recording mechanism are operated, andwhich are guided with their depending stems in the top 41 and bottom 42,of the key-board. As

shown in the drawings, nine longitudinal columns of these keys arearranged transversely side by side. The first column on the right-handside of the machine contains seven keys and represents fractions ofone-eighth of a cent, the next column toward the left contains nine keysand represents cents and the remaining columns of keys toward the lefteach contains ninekeys and represents progressively higher orders ofnumbers according to the decimal system, so that the registering .keysin the last or left hand column represent hundreds of thousands ofdollars.

The lowest numbers of the several columns of keys are arrangedtransversely in a row on the rear part of the key-board and thecorresponding highernumbers of the several columns are arranged likewisein transverse rows and progressively in their order toward the front endof the key-board.

Eachofthe registering keys is yieldingly.

. key and bearing with its lower end against the bottompf the.key-board. The upward movement of each key is limited by a shoulder 44formed on the upper part of its stem and engaging with the underside ofthe top of the keyboar Y I 7 The downward movement of all of the keys issubstantially the same, but the arrangement of each column of keyslengthwise of the lower actuating arm of each key lever causes the-keysto bear against their lever at different distances from its pivot, sothat by depressing different keys the same distance, the

.key lever will be turned different distances.

The keys having thev lowest numbers bear against their respective keylevers nearest the pivot and consequently the levers are thereby thrownthe greatest distance, and the uppermost stop shoulders are shifted intothe path of the stop lug 34 of the respective controlling arms. Thethrow of each key lever upon depressing any one of its keys is such thatthe proper stop shoulder on its upper arm is moved into'the path of thestop lug 34 of the controlling arm, and the downward movement of therespective gear segment is arrested after having turned the adjacentdial gear pinion a number of spaces corresponding to the number of thekey which is depressed.

Loose connection for segments The loose connection between eachcontrolling arm and its gear segment, heretofore referred to, is shownin its simplest form in the connection between the controlling arm andthe gear segment, which are controlled by the initial or lowest columnof registering keys. As shown in Figures 1 and 3, the loose connectionbetween the controlling arm and the gear segment of the lowestregistering device consists of upper and lower-guide lugs 45 and 46arranged on the upper end of the segment and bearing against the upperand lower guide faces 47 and 48, which 'are formed on the upperend ofits companion controlling arm. As the controlling arm and segment riseand fall, the guide lugs of the segment slide back and forth on theguide'faces of the arm. The guide faces are so constructed that the backand forth movement of the segment on the arm is radially with referenceto the dial pinion in all positions of the segment. By so forming theguide faces of the arm, the gear segment can be engaged with anddisengaged from the dial pinion in all positions of the segment withoutdisturbing the position of the dial pinion. The construction of theloose con-' nections between the controlling arms and gear segments ofall of the higher registering devices above the fractional registeringdevice are combined with carrying devices, whereby each registeringdial, upon making one complete turn, causes the next higher dial to beturned forward one space, thereby carrying up a number from onecolumn'to the nexthigher column. The loose connections between thecontrolling arms and the segments and the carrying mechanism of thehigher registering devices are constructed as follows As shown inFigures 1, and 2, each controlling arm is provided at its upper end withupper and lower guide faces 47 and 48 and its lower guide face isengaged by a lower guide lug .46 on the adjacent gear segment, the sameas in the coupling between the controlling arm and segment of theinitial registering device. The gear segments of the higher registeringdevices are each provided with an upper guide lug 49 which is adapted attimes 7 to bear against the upper guide face 47 of the guide face of thecompanion arm when no number is carried from a lower to a higherregistering device. is held in. this elevated position above theadjacent guide face by a rocking latch 50 "which is arranged in a notchin the rear side of the gear segment and which normally projects towardthe left and-engages with the upper guide face 47 of the adjacentcontrolling arm, as shown in Figures 2 and 5.

During the ordinary up and down movement of each higher controlling armand gear segment, the latter is guided by its lower guide lug 46 and thelocking latch 50 engaging with the lower and upper faces of the adjacentarm, this movement being'the same as the movement of the controlling armand gear segment of .thefractional registering device. Normally thedownward movement of the controllingarm is determined by the position ofits companion key lever and this arm in turn controls the extent of thedown- The upper guide lug 49 latter.

more than the position of the key leverpermits the same to move.

The withdrawal of the locking latch of each higher registering device iscontrolled by the next lower registering device and the withdrawal ofeach latch is eflected when the next lower registering device has madeone complete turn and arrived at zero. Each of the locking latches ispivoted on the right hand sideof its adjacent gear segment, so as toturn transversely with reference to the The latch is turned toward theleft into its operative position by a spring 51, the movement in thisdirection being limited by a shoulder 52 arranged on the latch andhearing against the right hand side of the gear segment. 53 (Fig. 5) isan upright trip plate bar 35 and is provided at its upper end with arearwardly and then forwardly projecting hook 55, and in front and belowsaid hook with a bend forming a bearing finger 56 (Fig. 16). 57represents trip cams arranged on the left-hand side of each registeringdial pinion and connected with the adjacent pinion and dial, butseparated from the pinion by an intervening space or groove. The face ofeach of these cams may begin at its lowermost point near the axisthereof and then extend outwardly in a spiral line terminating with itshighest point in line with its lowermost point with which it connectsradially and abruptly. The trip cam of the fractional registering devicehas its face divided into eight parts, each part of which except thefirst is arranged one-eighth of a space further from the center of thecam than the preceding part, while the trip cams of the higherregistering devices each has its face divided into ten parts, each partexcept the first being arranged one-tenth of a space farther from theaxis of the cam than the preceding part. Each of the trip arms 54extends upwardly along the right-hand side of the trip cam of a lowerregistering device, and its shoulder 56 engages with the face of thiscam, while the hook 55 at its upper end extends toward the left and isadapted to engage with the trip plate 53 of the next higher registeringmechanism. In the initial position of each trip arm, its shoulder 56engages with the lowest part of its trip cam, as represented in Figures2 and 6. As the trip cam is turned in the direction of the arrow, Figure2, at the same time that the dial and gear pinion are moved forwardly,by the adjacent gear segment, during the adding operation, the trip armis moved backwardly by the gradually rising face of the trip cam. Duringthis back ward movement of the trip arm, its hook engages with the tripplate 53 of the next higher registering device and is deflected towardthe right thereby, the hook being sufficiently elastic for this purpose.After the hook has passed in rear of said trip plate, the hook owing toits resilience springs back to its normal position, so as to standbehind said trip plate. When the shoulder of the trip arm reaches thehighest part of the face on the trip cam the trip arm has been shiftedto its rearmost position. Upon now turning this cam forwardly anotherspace together with its companion dial and pinion, the highest part ofthe cam is carried from underneath the shoulder ofthe trip arm and thelatter is moved forwardly over the abrupt face of the cam until itsshoulder 56 again engages with the lowest part of the cam face. Duringthis IIIOXGIIlGllt of the trip arm,its hook strikes the rear side of thetrip plate 53 of the next higher registering mechanism and turns thesame forwardly, thereby disengaging the locking latch from the adjacentcontrolling arm and permitting the gear segment carrying the trip plateto move forward one space. The forward movement of the trip arm iseffected when the dial with which its trip cam is connected has made onecomplete rotation and again stands at zero, whereby the additionrepresented by this complete rotation is carried to the next higherregistering device. The forward movement of the trip arm is effectedquickly by a spring 58, which connects with a stationary cross bar 59arranged in front of the trip arms. The trip plate 53 of eachregistering device is so arranged and is of such length that the hook ofthe next lower trip, arm can engage with the rear side of the plate, fordisengaging its latch in any position of the gear segment carrying theplate, and in order to accomplish this engagement it is obvious thatcams 57 should be constructed so as to give arms 56 the proper throw. Ifa gear segment is locked in its highest position by reason of none ofits companion keys having been depressed, the withdrawal of its latchfrom the controlling arm simply permits the gear segment to drop onespace and turn its companion dial pinion forward one space, while inengagement therewith, the movement of this dial representing one numbercarried up from the next lower dial. If any one of the keys of the keylevers has been depressed, so as to release the gear segment and permitthe same to move downwardly for effecting an addition, and if duringthis time the next lower registering device has made a complete turn, soas to require the carrying up of a I in addition to the spacescorresponding to the depression of its respective key.

Then the locking latch has been withdrawn so as to permit a gear segmentto move downwardly one space farther than its controlling arm, the latchremains in this position during the subsequent upward movement of thearm and the segment until the upward movement of the arm is arrested bystriking thestop bar 32, and the gear segmentcont-inues its upwardmovement independent of the arm the extent of one space. The gearsegment has now reached its highest position, and its latch is againswung automatically, by its spring, over the controlin this instance themillions of dollars is ling arm. The controlling arm and gear segmentnow remain in this relative position until another number is to becarried up from the next lower registering device.

WVhen the controlling arm has been retracted to its highest position,the adjacent key lever is moved into its normal retracted position, so.that its locking shoulder 38 engages with the locking lug 33 of thecontrolling arm and locks the latter against downward movement. The.return movement of each key lever is preferably effected bya springwhich connects the upper arm of the key lever with the transverse shaft9, as shown in Figure 2, or with some other convenient part of themachine. The lower guide lug of the gear segment is not absolutelynecessary because the weight of the parts connected with the controllingarm and arranged in rear of its pivot is sufficient to raise the arm,butit is preferable to employ this lower guide lug 46 on the gearsegment becauseit compels the arm to rise with the gear segment andavoids displacement of these parts. with reference to each other,

and also serves as a stop to limit the upwar movement of the gearsegment.

The gear pinion and the co-operating gear segment of the fractionalregistering device are so constructed that the fractional dial makes onerotation whenever it is moved forward eight spaces. After the fractionaldial has made one rotation the whole number represented by this rotationis transferred by the first carrying device from the registeringmechanism of the fractional dials to the next higher registering devicewhich represents cents. The complete turns of each of the followingregistering devices are in. like manner carried or transferred to thenext higher dial by the respective carrying device. The dial whichrecords the highest number;

preferably operated only by the adjacent carrying device of the nextlower dial and is incapable of being operated directly from thekey-board because it is not provided with of these shifting levers ismounted loosely on the supporting bar 35 adjacent to the left hand sideof each of the key levers and is provided on its upper arm with aforwardly projecting feeling finger 62 and with a shifting finger 63which extends behind the upper arm of the adjacent key lever. Thefeelinglevers have their fingers arranged in rear of the total cams, 57, andeach of these levers is turned so that its upper arm moves backwardly bythe upper arm of the adjacent key lever engaging with the shiftingfinger 63 of. the feeling lever. 64 represents a transverse pull bararranged in rear of the lower arms of the feeling levers and connected'with each of the latter by a pull spring 65, as represented in Figures 2and 6. This pull bar is connected at its ends to the lower ends of twodepending pull or rock arms 66, which are secured at their upper endsto'the rock shaft 9, as shown in Figure 6. Upon turning this rock-shaft,so as to swing its depending pull arms backwardly the feeling levers areturned by means of the springs 65 so as to move the upper arms of theselevers forwardly. This movement of the rock-shaft on the rocking frame29 in the same manner inwhich the like cam 14 is pivoted on itscorresponding rocking frame 15. The cam 67 can be, raised and loweredwith its front end into an inoperative oroperative position, thismovement belng limited by means of a lug 70 arranged on the cam, asshown in Figure 9, and projecting into a slot 71 '(Fig. 8) in theadjacent rocking frame in the same manner in which the movement of thecam 14 is limited.

72, Figures 8 and 9, represents a rearwardly projecting rock-arm securedto the rock shaft 9 and provided at its rear end with a roller orprojection 73 which is adapted to be engaged by the cam 67 for turningthe rock shaft 9. When numbers are being added with the machine, the cam14 is depressed, as shown in full lines, Figure 2, so as to be in aposition when moved forwardly by the rocking frame 15 to engage theroller on the arm 13, for moving the gear segments into engagement withthe dial pinions, and during this time the cam 67 is lifted into theposition shown in full lines, Figure 8, so that when the rocking frame29 is moved forwardly, the cam 67 will clear the roller 7 3 of therockarm 72 and not disturb the Iigoc-k-shaft 9 and the parts connectedtherewit If it is desired to restore all of the total dials 2 to zero,the cam 14 is raised into its in'- operative position, shown by dottedlines 14 in Figure 2 and the cam 67 is lowered into its operativeposition. as shown by dotted lines 67 in Figure 8. Upon now turning therockshaft by hand so as to move both rocking I 20 frames 15 and 29forwardly, the cam 14 passes over the roller 18 of the arm 13 withoutdisturbing the same, but the inclined front of the cam 67 engages withthe roller 7 3 on the rear end of the rock-arm 7 2 and raises the sameuntil this roller engages with the concentric This pull on the springs'65 causes the feeling levers to be turned until the feeling fingers oftheir upper arms engage with the spiral surfaces of the trip cams. Afterthe feeling fingers bear against these cams, their movement is arrestedand the continued backward movement of the pull-bar 6% simply stretchesthe springs until the bar reaches the end of its backward movement. Thefeeling finger of each feeling lever engages with that part of thesurface of the adjacent trip cam which is directly opposite the feelingfinger, and as these trip cams are turned with the adjacent dial'theypresent different parts of their spiral surfaces to the opposing feelingfingers, which causes the forward movement of the upper arms of thefeeling levers to be arrested in different positions when swungforwardly. During the forward movement of the upper arm of each feelinglever, its shifting finger 63 engages with the rear side of the upwardlyprojecting arm of the adjacent key lever and moves this arm forwardly.The construction.of the partsin such that the spiral surfaces of thetrip can bears a definite relation to the step-shaped series of stopshoulders on the upper arm of the key lever. When the feeling finger ofthe feeling lever, upon being moved forwardly, bears against thelowestkey leverstop-controlling part'of the adjacent trip cam, theadjacent key lever is carried simultaneously forward with the feelinglever the greatest distance and its uppermost stop shoulder iscarried'into the path of the stop lug of the controlling arm.The'succeeding parts of the spiral surface of the trip cam are soconstructed that they rise progressively, higher and arrest the forwardmovement of the feeling lever when the same has carried the adjacent keylever with its corresponding stop shoulder into the path of the stop lugof the controlling arm. This forward movement of the feeling lever andthat of the upper arm of the key lever is gradually reduceo. as theprogressively higher parts of the trip cam are presented to the feelingfinger, and when the highest part of the trip cam is presented to thefeeling finger, the feeling lever is prevented from moving forward atall and the upper arm of the key lever is not moved with its lockingshoulder out of engagement with the locking stop of the controlling armand consequently the companion gear segment connected therewith is heldagainst downward movement. After the rocking frames 15 and 29 have beenturned forwardly sufficiently to engage the several feeling fingers ofthe feeling levers with their respective trip. cams, the rear ends ofthe segmental notches 28 in the rocking frame engage with the cross bar25 and depress the same, thereby moving the lifting bar 22 downwardlyand at the same time pulling down the springs 27. This downward pull onthese springs causes each spring to pull its respective gear segmentdown as far as possible, and after the downward movement of the segmenthas been arrested the continued downward movement of the cross bar 22,together with the rocking frames simply stretches these springs untilthis bar reaches the end of its downward movement. If a gear segment islocked in its uppermost or zero position, its spring 27 will After therocking frames have reached the j end of their forward movement and theroller 73 has dropped 05 from the rear end of the concentric portion 69of the cam 67, the gear segments are moved forwardly by hand operatedmechanism into engagement with their respective dial pinions and areheld in this position during the entire subsequent backa ward movementof the rocking frames, which is effected by hand operated mechanism.During the backward movement of the rocking frames, the gear segmentsare raised to their highest positions, while in engagement with the dialpinions by the rod 22 and connecting parts and turn the dialsbackwardly. At the end ofthe upward movement of the gear segments thelatter are released, so as to permit them to move into their retractedposition, out of engagement from the dial pinions. During thisoperation, those gear segments which are held or locked in their highestpositions, by reasons of their dials being at zero, are simply movedforward at the end of the forward movement of the rocking frames, so asto engage with their respective dial pinions and are again movedbackwardly out of engagement therefrom at the end of the forwardmovement of the rocking frames, without disturbing their respectivedials. Each of the unlocked gear segments is moved downwardly a numberof spaces corresponding to the number which is registered on its dial,the extent of this movement being controlled by the companion trip camwhich arrests the forward movement of the key lever, through the mediumof its feeling lever, when the proper stop shoulder of the key lever hasbeen presented to the controlling, arm.

Upon now moving the gear segments forwardly in their variously depressedpositions and then raising them to their highest position, eachdepressed gear segment will turn its dial backward the same number ofspaces that the gear segment was depressed. Inasmuch as each gearsegment was permitted to descend by its trip cam, feeling lever and keylever the same number of spaces as the number indicated on its dial, thegear segment subsequently moves upwardly the same number of spacesbefore reaching its highest position, thereby turning its dialbackwardly the same number of spaces and restoring the same to zero.When all of the dials have been returned to zero, the shoulders 56 ofall the trip arms engage with the lowest parts of all the trip cams 57.The cams 14 and 67 are provided with a longitudinal slit 74, (Fig. 18)so as to facilitate the manufacture of these parts. i r

The mechanism whereby the positions of the cams 14 and 67 are reversedpreparatory to restoring the dials to zero is constructed as follows:

The cams 14 and 67 drop into their opera-- tive position by gravity.Each of these cams is provided in rear of its pivot with a tail 75 (Fig.8) which is depressed when it is desired to lift the respective cam intoits inoperative position.

76 is a shifting lever which is pivoted at its lower end and is normallyturned so that its upper end is disengaged from the rear side of thetail on the cam 14, by a spring 7 7, as

shown in Figure 2. The member 7 6 projects in rear of the main frame .soas to' be accessible for manipulation. 78 is a shifting lever which ispivoted between its upper and lower arms and arranged with its upper armin rear of the tail on thecam 67 and normally held in engagementtherewith by a spring 79, as shown in Figure 8. 80 represents an elbowlever pivoted below the bottom of the keyboard, as represented in Figure8. 81 represents a main line or cord which is connected the branch 83connects with the shifting le-' ver 7 8below its pivot. 84 represents atotal or shifting key having a depending stem which is guided in top andbottom of the keyboard and which bears with its lower end against theupper arm of the elbow lever 80. Upon depressing the key 84, the elbowlever 80 is turned, so as to draw the cords or lines 81, 82 and 83forwardly, thereby moving the upper end of the shifting lever 76 intoengagement with the tail of the cam 14 and lifting the same into aninoperative position, while the shifting lever 78 is moved rearwardlywith its upper arm from the tail of the cam 67, thereby allowing-thelatter to drop into its operative position. 1 Upon depressing the gearsegments while the parts are in this shifted position, the segments movedownwardly out of engagement with the dial pinions. After the gearsegments have been depressed, they are moved forwardly into engagementwith their respective dial pinions by an elbow lever 85'which isconnected with its lower arm bya line or cord 86 to the rod or bar 7, asshown in Figure 8, or to one of the rock arms 8. The elbow lever isturned in the proper direction for this purposeby a shifting key 87having a depending stem which is guided in the top and bottom of thekey-board and which bears against the upper arm of the elbow lever 85.After the gear segments have been moved forwardly into engagement withthe dial pinions, while in the depressed position, the gear segments areretained in forward position, and at the same time raised untiltheyreach their uppermost position, whereby the dials are turned to zero.The shifting key 87 is now released which permitsthe spring 11 to movethe gear segments rearwardly out of engagement with the dial pinions.The key 84 is also released, thereby permitting the shifting levers 76and 78 to resume the positions shown in Figures 2 and 8, leaving themachine in position to resume adding. Each of the dials is held againstturning while its companion sub total dial is being turned to zero bymeans of a detent pawl 103 which These springs are connected loosely attheir rear ends to the rocksl1aft 9 and at their front ends to the pawlarms 105. During the forward movement of the gear segments preparatoryto turning the dial pinions, the detent pawls are swung forwardly out ofengagement with the dial pinions by means of two shifting rods 107 whichare connected at their rear ends to opposite ends of the transverse rod7 or some part moving there with and each of' which is provided at itsfront end with a fork or bifurcation 108, which engages with a pin orshoulder 109 on the pawl arm arranged on the adjacent side of themachine. As the gear segments move forward into engagement with the gearpinions the shifting rods 10? move the 'detent pawls 103 out ofengagement with the dial pinions, and when the gear segments movebackwardly the detent pawls are again engaged with the dial pinions bythe springs 106.

Recording mechanism For the purpose of recording the numbers which areadded together by the above described mechanism a recording mechanism isprovided which is constructed as follows 140 represents a printingroller or platen which is arranged transversely in the upper,

rear part of the machine and under the lower side of which the sheet orother article is placed which receives the record. 141 represents anumber of type segments which are arranged transversely side by sidebelow the platen and which are pivoted at their front ends to thesupporting bar 31 upon which the rear ends of the controlling arms 30are pivoted. Each of these type segments is provided at its rear endwith a segmental row of type carriers 142, which are capable of movingradially back and forth on the type segment.

Each of the type carriers is provided at its rear end with a type and isguided upon the type segment by means of screws or rivets 143 secured tothe type carrier and arranged in radial slots 144 formed in the typesegment, as shown in Figures 5 and 17. Each of the type carriers is heldin its inward or retracted position by means of an S-shaped spring 145,which is arranged between the carrier and the type segment and issecured with one end to the carrier and with its other end to the typesegment, Upon raising or lowering the type segment, any one of its typecan be brought to the printing point or line, and upon striking the backor inner end of the type carrier, when the same is in line with theprinting point, the type carrier will be driven outwardly and its typewill produce an im pression on the sheet supported by the platen. Afterthe carrier has received the blow for driving the same against theplaten, the carrier is again quickly retracted to its innermost positionby means of its sprin Each of the type segments is connected with one ofthe controlling arms, so that upon depressing a controlling arm and theregistering gear segment connected therewith, the companion type segmentwill be raised and present one of its type'to the printing point.

For convenience in operating the machine, the keys are separated aconsiderable distance on the key-board and in order to produce a compactrecord, the printing segments are arranged closer together than the keysand the registering mechanism. In order to permit of this arrangement,each type segment and its corresponding controlling arm are connected bya connecting arm 146, as represented in Figures 1, 2 and 5. Theconnecting arms of the central controlling arms and type segments arecomparatively straight, but the connecting arms of the outer type segments and controlling arms are arranged obliquely, the degree of thisobliquity gradually increasing from the central type segments andcontrolling arms in opposite directions toward the outer type segmentsand controlling arms, as represented in Figure 1. The connecting arms146 of the outer controlling arms are arranged in the spaces behind theupright parts and above the horizontal parts of the controlling arms,thereby permitting the inner controlling arms to move up and downwithout interfering with the connecting arms 146 of the outercontrolling arms.

The types on each type segment are arranged to correspond with the teethand numbers of its companion gear segment and registering dial, the zerotype being at the upper ,end of the series and the progressively higherdigits arranged in their order downwardly from the zero type. WVhen theregistering gear segment is in its highest position, it presents itszero tooth to the dial plnion, and the type segment which at this timeis in its lowest position presents its zero type to the printing point.Upon depressing a gear segment so as to present one of its higher teethto the dial pinion, its companion type segment is raised proportionallyand presents a corresponding higher numbered type to the printing point.

147 represents a number of hammers whereby the'type carriers are struckfor driving the type against the platen. One of these hammers isarranged adjacent to each "type segment and is provided with a headwhich is arranged in front of the series of types and in line with theprinting point of the platen. Upon shifting the type segment so as to brng one or another of its type carriers to the printing line and thenoperating the hammer, the latter delivers a blow against the inner endof the particular carrier which is at the printing point and produces animpression of its type on the platen. The several hammers are pivoted onthe transverse rod 12. arranged in rear of the segments; and each of thehammers is yieldingly held in its forward position by a spring 148connected at its lower end to a cross bar 149 and atits upper end to adepending arm 150 on the hammer.

lVhile the drawings show a preferred means for operating said hammers,which means is fully described in the parent application, Serial No.1,004, now Patent No. 1,429,201, any suitable means may be employed forthis purpose and as the specific hammer operating mechanism forms nopart of the invention claimed in this application, this mechanism is notdescribed in detail. It will be sutlicient for the purposes of thisapplication to state that the hammers are re- .tracted from the typesand then released by pawls 153, Figure 2, which pawls are mounted onand'operable by a rod 151. The rod 151 is moved to operate the pawls, bymeans of a hooked member 168, pivoted on the rod 151 and normallyengaging the bar 169, which latter is operated at each operation of therocking frames and 29.

Suitable means are provided for automatically eii'ect-ing printing ofzeros in the items.

Any suitable means for this purpose may be employed, that shown in thedrawings being the preferred one which is fully described in the parentapplication, Serial No. 1,004, now Patent No. 1,429,201, to whichreference is hereby made.

N on-pm'nt mechanism l/Vhen it is desired to only add the num bers andnot record the same, the coupling hook 168 (Figs. 2 and 8) is raisedwith its notch out of engagement with the crossbar 169, which allows therocking frames and connecting parts to move back and forth withoutaffecting the hammer operating devices. from the cross bar by means ofan elbow 171 secured to a transverse rock shaft 172. The lower arm ofthe elbow lever is connected with the shaft by a spring 173, whereby thelever and the shaft carrying the same are turned in the direction fordisconnecting the upper arm of the. lever 17 from the hook 168 therebypermitting the latter to engage the bar 169. 174 represents an elbowlever arranged below the bottom of the key-board and connected by a lineor cord 175 with its lower arm to the upper arm of the elbow lever 171as represented in Figure 8. 176 represents a shifting key having adepending stem which is guided in the top and bottom of the key-boardand which engages with its lower end against the upper arm of the elbowlever 174. Upon depressing this key the elbow lever 174 is turned in thedirection for moving the rock arm 171 into engagement with the couplinghook 168 and disengaging the latter from the cross bar 169, therebythrowing the recording mechanism out of gear. Upon releasing the key176, the rock arm 171 is per- The coupling hook is disengaged mitted toswing backwardly and allow the coupling hook to engage with the crossbar 169, thereby throwing the recording mechanism into gear. When thegear segments and the printing segments are thus operated relatively tothe keys which, have'been depressed, the number represented by thedepressed keys is registered and also recorded by the printingmechanism. The addition of further numbers proceeds in like manner theseveral numbers added successively by the registering mechanism but eachnumber is printed individually by the recording mechanism.

When it is desired to print or record the total at the foot of thecolumn of the numbers which have been printed, the operation is as,feeling fingers forwardly into engagement with the respective cams 57and at the same time each feeling, lever carries the adjacent key leverforwardly so that its particular stop shoulder 39 corresponding to theposition of the trip cam 57 and its dial is moved into the path of thestop lug 34 of the controlling arm. After the key levers have been thusshifted forwardly into their respective positions corresponding withtheir dials, the continued forward movement of the rocking frames causesthe gear segments while in a retracted position out of engagement withthe dial pinions to be depressed until each segment is arrested by theengagement of the stop lug on its controlling arm with the respectivestop shoulder of its key lever; where by each printing segment is raisedso as to present the type carrier to the printing point which carriesthe type corresponding to the number registered on its companion dial.During the last part of the forward and downward rocking movement of therocking frames the hammers are operated and the particular type at theprinting line are im pressed on the platen. Upon now swinging therocking frames backward the gear segments are raised while still in aretracted position out of engagement with their companion dial pinions,thereby permitting further numbersto be added to the total alreadyregistered on the dials. If, however, it is desired to turn the dialsback to zero, after the total of the added numbers has been printed orrecorded the gear segments, while in the retracted lower position whichthey occupy while printing the totals, are moved forwardly intoengagement with their respective dial pinions by the depression of thekey 87. Upon now moving the rocking frames baekwardly the gear segmentsare raised while in their forward position in engagement with theirpinions, whereby each of the latter is turned backwardly and when thesegments reach the end of their upward movement, the dials have beenturned backwardly a number of spaces corresponding to the numberi on thedial, thereby turning all of the dials to zero.

l'Vord printing mechanism For the purpose of permitting words to beprinted in front of the numbers which are added together the followingmechanism is provided 1411 (Figs. 1,7,9 and 10) ,representsawordprinting segment which is mounted loosely on the rod 31 next to thehighest number printing segment of the main number recording mechanirim.This segment is provided with a number of radially movable carriers1420, which are constructed the same as the carriers of the numberprinting segments and each of which is provided on its face with a wordtype. The words of these types are selected according to the purpose orbusiness for which the machine is to be used. For instance, if themachine isto be used in a bank, types representing the words Vouchers,Checks, Drafts, Bills, and similar words common to the banking businessmay be used. lVhen the machine is designed for use in a restaurant thewords Soup, Vegetables, Meats, Dessert, and other words peculiar to thisbusiness may be used.

The position of the word type segment is controlled by a key lever 3600,Figure 7, which turns on the bar 35, is similar to the number key leversand is provided on the front side of its upper arm 3700 with a verticalseries of differential stops or shoulders 3000 which are adapted to beengaged by the stop lug 3-100 of a controlling arm 3000; and lever 3000is also provided with a locking stop or shoulder which is adapted to beengaged by a locking lug 3300 on the controlling arm, represented inFigure 7. The controlling arm 3000 is connected with the word printingsegment by a connecting bar 1460. The stop shoulders on the upper arm ofthe word key lever are so arranged that upon swinging this lever so asto carry different shoulders into the path of the stop lug on thecontrolling arm, the latter will be arrested at different points in itsdownward or forward movement and the word printing segment connectedtherewith will be stopped at different points in its upward movement andpresent the particular word type to the printing point which correspondswith the shoulder or stop on the word key lever. The upward movement ofthe controlling arm 3000 is limited bv its rear locking lug 3300engaging with the stop bar 32 which arrests the upward movement of thecontrolling arms 30 of the number registering and recording mechanism.The downward movement of the controlling arm 3000 and the simultaneousupward movement of the word printing segment is effected by a spring 215which yieldingly connects this arm with the bar 25 to which theregistering gear segments are connected.

216, Fig. 1, represents a row of word keys having depending stems whichare guided in the top and bottom of the key-board and which engageagainst the upper side of the front arm 3000 of the word key lever atdifferent distances from the fulcrum thereof. Upon depressing any of theword keys the word key lever will be turned the proper distance to bringits proper stop shoulder into the path of the stop lug of the companioncontrolling arm and arrest the word type segment during its upwardmovement, when the word type corresponding with the word of thedepressed key has reached the print ing line. l-Vhen the respective wordtype is in this position the same is driven against the recordingsurface for producing an impression thereon, at the same time that theprinting of the numbers by the numbering printing segments is effected.The word types are driven against the platen by a hammer operatingmechanism which is constructed the same as the hammer operating devicesof the number printing mechanism and the same letters of reference aretherefore used to denote the same. The word key lever is yieldingly heldin its normal position by a spring 000.

Auxiliary addin mechanism An auxiliary adding mechanism is providedwhich permits of registering and recording the individual or separatenumber of adding and recording operations which have been made by themain adding mechanism and also permits of effecting an addition ofnumbers different from the numbers which are added by the main addingmechanism.

This auxiliary adding mechanism is constructed as follows: I

2000 (Fig. 6) represents a number of auxiliary dials which are mountedon the left hand end of the dial shaft 5000 represents a number ofauxiliary gear segments which are mounted on the transverse rod 7 andare adapted to engage with gear pinions 4100 on the auxiliary dials.Each gear segment 5000 is connected with a controlling arm 1,001arranged adjacent to the gear segment by a latch or coupling which attimes permits the segn'ients to move independently of the controllingarm. 3601 and 3701 represent auxiliary key levers which are operated byauxiliary keys 4101 (Fig. 1) and which control the'operation of theauxiliary registering and recording mechanism. The detail constructionof the dials, gear se ments, printing segments, key levers and the partsco-opcrating therewith of the auxiliary registering and recordingmechanism is substantially the same as the construction of the sameparts anism, except as hereinafter distinguished,

and the same letters of reference are there-v fore employed to denotelike parts in both of these sets of mechanisms.

In the drawings, two auxiliary key levers and three auxiliary dials areshown, which permits of registering and recording a total of 999, butadditional registering and reco ding devices may be employed if it is desired to increase the capacity of the machine.

In the auxiliary mechanism each of the higher gear segments 5000 isprovided with a pivot latch identical inconstruction with the latches inthe main registering mechanism. The lowest or primary gear segment ofthe auxiliary registering mechanlsm s provided with a movable latch 502which is adapted to be en aged with or to be disen gaged from the upperguide" face on its companion controlling arm, but for the. purpose ofthe present application this latch might be dispensed with and theprimary gear seg ment constructed the same as the primary gear segmentof the main registering and re cording device.

1 In the auxiliary registering mechanism the gear segments are notprovided with lower stops 46 like those of the gear segments of the mainregistering mechanism, which permits the auxiliary controlling arms tomove downwardly when necessary independently of the auxiliary gearsegments. The upward movement of the auxiliary gear segments is limitedby stops 218 with which the upper ends of the gear segments engage. 219,represents a foot formed on the lower side of each controlling arm 3001and adapted to engage with the lifting cross bar 22. However, for thepurposes of the present application, the auxiliarv mechanism could bemade exactly as the main number registering and recording mechanism ismade.

For the purpose of effecting an ordinary addition of numbers on theauxiliary registering mechanism, the auxiliary key levers are shiftedinto the proper position by the depression of the keys 401 representingthe numbers to be added and then the rocking segments 15 and 29 areturned forwardly. During the forward movement of the rocking frames theauxiliary gear segments are first moved into engagement with theauxiliary dial pinions by the cam 14 and then pulled down by the springs27, and the controlling arms are also pulled down by the latches of thegear segments engaging with the controlli ng arms. The downward movementof the gear segments and controlling arms continues until the stops 34:of the controlling arms strike the shoulders 39 on the key levers whichstand in the path of the stops 34. At the end of the forward movement ofthe rocking frames the gear segments are withdrawn from the dial pinionsby the springs and during the subsequent backward movement of therocking frames, the gear segments and controlling arms are raised by thecross bar 22 engaging with the gear segments and with the feet 219 ofthe arms. The carrying of numbers from the units dial to the tens dialand from the latter to the hundreds dial and the turning of the dial tozero is effected in the same manner as in the main registeringmechanism.

By this organization of the machine, numbers such as sales or prices ofgoods can be added and recorded by the main registering mechanism, andother numbers such as the rebate on sales or discount on the prices ofthe goods, can be separately added and recorded by the auxiliaryregistering mechanism.

The key controlled devices whereby the parts of the main registering andrecording mechanism are shifted into the proper position preparatory toregistering and recording a number are distinct from the key controlleddevices whereby the same effect is produced in the auxiliary registeringand recording mechanism, but both sets of registering and recordingmechanisms are operated simulta-' neously by the one'universal shiftingmechanism for effecting the registration and record-' ing of the numberswhich are represented by the different positions of both key controlleddevices. 4

Keyboard mechanism word or other character are autoniatically locked ina depressed position until the adding or recording operation of theparticular number, word or other character has been completed, and thenthe depressed keys are automatically released and permitted to be raisedby their springs.

As shown in Figures 2, 6, 8, 11, 12, 13 and 14, the keys are held in adepressed position by a number 'of locking plates 327 one of which isarranged lengthwise on the left side of the stems of each row of keys.Eachof the locking plates is pivotedat its lower end to the top of thekeyboard bottom, so as to swing transversely and is provided along itsupper edge with a number of downwardly facing catches or shoulders 328which are adapted to engage with upwardly facing locking shoulders 329on the stems of the keys. Each of the keys is provided with a convexface below its locking shoulder, consisting of a lower rising portion330 which inclines upwardly and laterally from the lower part of the keytoward the adjacent locking plate, and an upper recedingportion 331which inclines from the 0 upper end of the rising portion to the outerend of the locking shoulder 329 of the stem, as shown in Figures 12 and13. Each locking plate is drawn yieldingly with its catches against thestems of the adjacent row of keys by a spring 332, as shown in Figure13. The locking catches of the locking plates bear against the key stemsbelow the convex faces

